You bet it is. My current monsters are an Albino Tiger Oscar, Chocolate Pleco, Common Pleco, and a super aggressive Red Tail Black Shark. He may be small, about 1.5", but man he is MEAN. He rules the tank!!
Sounds like a great set up, are there any pictures available? And I definitely know how that is, I keep african cichlids and one of my smallest guys picks fights with guys nearly 2x his size!
You bet I've got pictures. Let me get on my phone so I can post them.
A bit off topic(okay, very off topic) - Your username, Ryan Dungey...Isn't he a motocross racer?